Privacy Policy
Pure Blocker · Last updated: 23 September 2026
Pure Blocker helps you avoid adult content. It is built and run by Raghav Sharma, an individual ("we", "us"). Questions: pureblocker.app@gmail.com
The short version: everything that decides what to block happens on your phone. We never see what is on your screen, and we never receive your screenshots, your journal, or the pages and apps you visit.
What stays on your device
- Screen content. With your permission, Pure Blocker uses Android's Accessibility service to read text on screen, only inside the apps you choose to monitor. The text is compared with your keyword list on the device and is not stored or sent anywhere.
- Image scanning (optional, Premium). If you are a Premium subscriber and turn on Image scanning, Google Play downloads a one-time pack of two small models (about 11 MB) to your phone. The download is handled by Google Play and contains no data about you. After that, the accessibility service takes a screenshot of a monitored app and checks the pictures with those two models, which are stored on your phone. The screenshot is processed in memory and discarded straight away. It is never saved, uploaded, or shared. The check works without an internet connection.
- Your setup and history. Keywords, monitored apps, block history, streaks, countdown and block-screen settings, and your urge journal (mood, trigger, app, note) are stored in the app's private storage on your phone.
- Password protection. Your password is stored only as a hash on your device.
- Notifications and overlay. Used to remind you and to show the block screen. Nothing from them is collected.
What leaves your device
| What | When | Why | Who handles it |
|---|---|---|---|
| Name, email address, profile photo, account ID | If you sign in with Google | To run your account, Community and cloud backup | Google Sign-In, Firebase Authentication |
| Cloud backup: keywords and pack settings, monitored app names and package names, countdown and block-screen colour | If you use Cloud backup | To restore your setup on a new phone. Stored under your account ID; only you can read it. Your custom block-screen photo is not uploaded. | Firebase Firestore |
| Community posts, comments, reactions and reports: text you write, your display name and photo, timestamps, whether you have Premium | If you use Community | To show them to other users. Posts are public inside the app. | Firebase Firestore |
| Keyword packs | When you download packs | To give you the word lists | Firebase Firestore |
| Usage events, such as app open, permissions granted, onboarding finished, a trigger was caught, streak milestone, breathing exercise started or finished, whether an urge was resisted, paywall or ad shown, purchase started. Device and app-version details are attached by Firebase. | When you use the app | To find and fix problems and improve the app. Events never include your mood, trigger, notes, the names of the apps you monitor (only how many), or anything you were viewing. | Firebase Analytics |
| Push notification token | If you allow notifications | To send you notifications | Firebase Cloud Messaging |
| Advertising ID and ad interaction data | If you use the free version | To show ads | Google AdMob |
| Purchase status | If you subscribe | To unlock Premium. We do not see your card details. | Google Play Billing |
| Image-scanner model download | When a Premium user first turns on Image scanning | To get the models onto your phone. No images or personal data are sent. | Google Play (Play Asset Delivery) |
The service providers above process data under their own privacy policies (policies.google.com/privacy and firebase.google.com/support/privacy). We do not sell your personal information.
What we do not collect
The text or images on your screen, your screenshots, your browsing or app history, the contents of your journal, your contacts, your location, or your files.
Sharing
We share data only with the providers listed above so the app can work, and when the law requires it. We may publish anonymous, combined statistics (for example, the average number of blocks per user).
Emails we send
If you sign in with Google, we hold the email address on that account. We use it to run your account, and occasionally to tell you about a significant update to the app or an offer on Premium. We do not send a regular newsletter, we never sell or share your address, and we never email anything about what you blocked or what you wrote in the app.
Every such email has an unsubscribe link at the bottom; one tap removes you from the list for good and does not affect your account, your subscription, or the app. You can also write to pureblocker.app@gmail.com from the address on your account, or open Email preferences.
Your choices and deletion
- Turn off Image scanning, the accessibility service, or notifications at any time in the app or in Android settings.
- Uninstalling the app removes everything stored on your phone.
- Delete your Community posts and comments inside the app.
- To have your cloud backup, account data, or Community content removed from our servers, email pureblocker.app@gmail.com from the address on your account.
- You can reset your advertising ID or opt out of ad personalisation in your Android settings.
Children
Pure Blocker is meant for adults, or for a parent or guardian setting it up on a child's phone. We do not knowingly collect personal information from children under 13 (or the age required in your country). If you think a child has given us personal information, email us and we will delete it.
Security
Data is sent over encrypted connections. No system is perfectly secure, so we cannot guarantee absolute security.
Changes
If we change this policy we will update the date above and, for significant changes, tell you in the app.